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Requests to determine the cause of damage

Here you can request to determine the cause of the damage. You can view the requests of other users and sort them according to the selected criteria. In addition, you can get information about your request, and you can follow the progress of its current state. If your application was not approved, it had probably been because it was impossible to identify the damage based on the sent photos or because the application does not address our topic - determining the pests of trees and shrubs. We will inform you about the status of your application by email.

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Code
Date
Assigned
Status
Days from submission
7458
21.2.2026
michal.lalik@nlcsk.org
Completed
3
7456
20.2.2026
A. Kunca
Completed
4
7409
27.1.2026
R. Leontovyč
Completed
7
7407
27.1.2026
A. Kunca
Completed
7
7349
16.1.2026
R. Leontovyč
Completed
1
7341
14.1.2026
R. Leontovyč
Completed
1
7340
14.1.2026
A. Kunca
Completed
2
7325
9.1.2026
R. Leontovyč
Completed
4
7323
8.1.2026
A. Gubka
Completed
1
7315
7.1.2026
R. Leontovyč
Completed
1

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Knopper gall
Knopper gall
Number: 6721
Received 14.8.2025
In progress: 0 days
Date of occurrence: 14.8.2025
Significance: Less harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Knopper gall

Andricus quercuscalicis

Knopper gall

Andricus quercuscalicis

hmyz

Received: 14.8.2025
Wood: Dub
Number: 6721
Date of occurrence: 14.8.2025
Discussion

Add comment: Knopper gall

Leaf-mining moth
Leaf-mining moth
Number: 6719
Received 14.8.2025
In progress: 1 days
Date of occurrence: 14.8.2025
Significance: Less harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Leaf-mining moth

Tischeria ekebladella

Leaf-mining moth

Tischeria ekebladella

hmyz

Received: 14.8.2025
Wood: Dub
Number: 6719
Date of occurrence: 14.8.2025
Discussion

Add comment: Leaf-mining moth

Cynipid gall wasp Cynips quercusfolii
Cynipid gall wasp Cynips quercusfolii
Number: 6718
Received 14.8.2025
In progress: 0 days
Date of occurrence: 14.8.2025
Significance: Less harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

hmyz

Received: 14.8.2025
Wood: Dub
Number: 6718
Date of occurrence: 14.8.2025
Discussion

Add comment: Cynipid gall wasp Cynips quercusfolii

Dothistroma needle blight
Sypavka červenáSypavka červenáSypavka červená
Dothistroma needle blight
Number: 6707
Received 11.8.2025
In progress: 3 days
Date of occurrence: 11.8.2025
Significance: Very harmful
Discussion
Assigned: V. Longauerová
Country: Italy

Question

Answer

Dear Alessandro, Thank you for your question. Based on the photo, the pathogen appears to be Dothistroma septosporum. Needle infection occurs from early May to late September. The first symptoms are pale yellow to brown spots resembling damage caused by sucking insects. By November, the infected needles have turned brown, and by the end of December, brick-red spots or even transverse stripes may be visible on the brown needles. The asexual stage of the fungus is Mycosphaerella pini. Best regards. Valeria 
Number of votes for this answer: 0

Pest

Dothistroma needle blight

Dothistroma septosporum

Dothistroma needle blight

Dothistroma septosporum

huby

Received: 11.8.2025
Wood: Pine
Number: 6707
Date of occurrence: 11.8.2025
Discussion

Add comment: Dothistroma needle blight

Catalpa powdery mildew
Catalpa powdery mildew
Number: 6698
Received 10.8.2025
In progress: 1 days
Date of occurrence: 10.8.2025
Significance: Harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Catalpa powdery mildew

Erysiphe elevata

Catalpa powdery mildew

Erysiphe elevata

huby

Received: 10.8.2025
Wood: Katalpa
Number: 6698
Date of occurrence: 10.8.2025
Discussion

Add comment: Catalpa powdery mildew

Cynipid gall wasp Cynips quercusfolii
Hrčiarka listová
Cynipid gall wasp Cynips quercusfolii
Number: 6697
Received 10.8.2025
In progress: 1 days
Date of occurrence: 10.8.2025
Significance: Less harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

hmyz

Received: 10.8.2025
Wood: Dub
Number: 6697
Date of occurrence: 10.8.2025
Discussion

Add comment: Cynipid gall wasp Cynips quercusfolii

Horse-chestnut leaf miner
Horse-chestnut leaf miner
Number: 6695
Received 10.8.2025
In progress: 1 days
Date of occurrence: 10.8.2025
Significance: Harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Horse-chestnut leaf miner

Cameraria ohridella

Horse-chestnut leaf miner

Cameraria ohridella

hmyz

Received: 10.8.2025
Wood: Pagaštan
Number: 6695
Date of occurrence: 10.8.2025
Discussion

Add comment: Horse-chestnut leaf miner

Gall wasp Neuroterus lanuginosus
Gall wasp Neuroterus lanuginosus
Number: 6668
Received 5.8.2025
In progress: 0 days
Date of occurrence: 5.8.2025
Significance: Less harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Gall wasp Neuroterus lanuginosus

Neuroterus lanuginosus

Gall wasp Neuroterus lanuginosus

Neuroterus lanuginosus

hmyz

Received: 5.8.2025
Wood: Dub
Number: 6668
Date of occurrence: 5.8.2025
Discussion

Add comment: Gall wasp Neuroterus lanuginosus

Cynipid gall wasp Cynips quercusfolii
Cynipid gall wasp Cynips quercusfolii
Number: 6666
Received 5.8.2025
In progress: 0 days
Date of occurrence: 5.8.2025
Significance: Less harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

hmyz

Received: 5.8.2025
Wood: Dub
Number: 6666
Date of occurrence: 5.8.2025
Discussion

Add comment: Cynipid gall wasp Cynips quercusfolii

Cynipid gall wasp Cynips quercusfolii
Cynipid gall wasp Cynips quercusfolii
Number: 6662
Received 5.8.2025
In progress: 0 days
Date of occurrence: 5.8.2025
Significance: Less harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

Cynipid gall wasp Cynips quercusfolii

Cynips quercusfolii

hmyz

Received: 5.8.2025
Wood: Dub
Number: 6662
Date of occurrence: 5.8.2025
Discussion

Add comment: Cynipid gall wasp Cynips quercusfolii

Gall midge Janetia cerris
Gall midge Janetia cerris
Number: 6658
Received 5.8.2025
In progress: 0 days
Date of occurrence: 5.8.2025
Significance: Less harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Gall midge Janetia cerris

Janetia cerris

Gall midge Janetia cerris

Janetia cerris

hmyz

Received: 5.8.2025
Wood: Dub
Number: 6658
Date of occurrence: 5.8.2025
Discussion

Add comment: Gall midge Janetia cerris

Oak powdery mildew
Oak powdery mildew
Number: 6634
Received 3.8.2025
In progress: 1 days
Date of occurrence: 3.8.2025
Significance: Harmful
Discussion
From: milan
Assigned: M. Zúbrik
Country: Slovakia

Question

Answer

monitoring
Number of votes for this answer: 0

Pest

Oak powdery mildew

Microsphaera alphitoides

Oak powdery mildew

Microsphaera alphitoides

huby

Received: 3.8.2025
Wood: Dub
Number: 6634
Date of occurrence: 3.8.2025
Discussion

Add comment: Oak powdery mildew

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